bbbb bbci bbeb bbet bbrc bbrg bcbc bcbg bccc bcci bcec bcer bcet bcie bcit bcru bctc bcuc bebb bebe bebi beci becu beeb beeg beer beet begg begi begu beic beir beit berc bere berg beri berr bert beru betc bete beti bett betu beur bibb bibe bibi bicc bice bicg bici bieb bier biet bieu bigb bigc bige bigg bigt bigu birb bire birg biri birr birt biru bitc bite bitt bitu brcb brce breb brec bree breg brei brer bret bric brie brig brit brrr brtc bruc brue brug brut btcc btec btie btrc btrt bttb bubb bube bubi bubu bucc buce buci bucu buer bueu buge bugg bugi buic buie buir buit buiu bur- burb bure burg buri burr burt buru but- bute buti butt cbbc cbcc cbce cbcr cbct cbcu cbec cbee cber cbet cbgb cbir cbit cbre cbrt cbtc ccbc cccb cccc ccci cccu ccee ccgc ccgt ccic ccii ccir ccrc ccre ccrg ccri ccrt cctb cctc cctt ccuc ccut cebu cec- cece ceci cect ceeb ceec cege cer- cerc cere ceri cert cet- cete ceti ceui cgcc cgcg cger cgtu cibc cibe cibi cicc cici cicr cict cicu ciee cier cigi cigu ciii ciit cirb circ cire ciri cirr cirt citb cite citg citi citt citu ciuc crbc crbu crcc crce crcr cre- creb crec cree creg crei cret creu crib cric crie crig crit criu crrt crtc crub crue crug crut ctbi ctec ctge ctgu ctic ctrc cub- cubb cube cubi cucc cuce cuci cuer cui- cuir cuit curb cure curi curr curt cut- cutc cute cutt ebbc ebbr ebcc eber ebic ebit ebru ebur ecbc ecbe eccb eccc ecce ecci ecct ecib ecig ecit ecrc ecri ecrr ecru ect- ectc eeee eerc eerg eetc eete eetu egbe egbu egcc egcg egcr egec egee eger eggb egge eggi egir egre egri egte eiec eiei eier eige eigg eire eitb eitc eiti eitr erbb erbe ercc erce ereb erec erei erer eret erg- ergg ergi eric erie erit eriu errc erre ertu erub eruc erur etbc etbr etcc etec etee eter etic etre ette etti ettu etui eubc eubi euer euge eur- eurc eure eurt gc-c gcbc gccc gcet gcic gcii gcrg gctc gebe gebi gece geer geet gege gegg geic geie geig geir geit gerb gere geri gert geru getb gete getg geti gett geue ggbt gggg gibb gibe gicr gier giet gige gigg gigi gire girg giri girr girt giru gite giue giur grbr grcc grce greb grec gree greg gret greu grib gric grie grig grit grrr grtc grub grue grug grui grur grut gtbr gtcr gubb gubi gubu guci guer gugb guge gugg gugi gugu guib gurb gure gurg guri gurr gurt guru gute guti gutt gutu i-be ibec ibeg ibet ibge ibie ibrc ibri ibtb ibtc icbc iccb iccc icci iccr icct iccu icec icee icer icet icgc icrc icre icrr icrt icru icub icue iecc ieet ieie iere ieri iett igbc igcc iger iget igri igue iiie iiii iiit iirc iitr iitt iiuc irbe ircc ircg ircu iree irer iri- iric irie irig irrc irre irri irte irti itbe itec iter itet itgc itic itie itri itur iucc iuce iuge iuiu rbbb rbbr rcbc rccb rccc rcet rcgc rcic rcrg rctc rctg rcti rebb rebe rebu recc rece reci recr rect recu reeb reet rege regi regr regt regu reii reir reit reiu rere rerg reri rert reru rete reti retr rett reue reut reuu rgbe rgbi rgit rgtr rib- ribe ribu ricc rice rict rier riet rieu rige rigg rigi rigu rire riri rite riti ritt ritu riue rrrr rtcc rtce rtcg rtee rtei rubb rube rubi rubu ruce ruci ruct ruer ruet ruge rugg rugi ruit rurc rure ruri ruru rute ruti rutt rutu tbcb tbcc tbce tbit tbrb tccc tccu tctc tebu tecr tect teec teer teet tegg tegi tegt tegu teic teie teir teiu ter- terc tere teri terr teru tete teti tetr tett tetu teut tgcc tgtc tibi tibu ticc tice tie- tiee tiei tier tiet tige tigi tigr tiit tiiu tirb tire tiri tirr tiru titc tite titi titt titu trcc tre- trec tree treg trei tret treu trge tri- trib tric trie trig trit trtc trte trtr trub truc true trug trut truu ttbb tter tttt tubb tube tubr tubu tucc tuei tuer tuet tugg tugu tuig tuit tuiu turb turc ture turg turi turr turt turu tute tuti tutt tutu u-ie ubbe ubbi uber ubet ubic ubii ubir ubit ucbc ucci ucrc ucut ueir ugcc ugcg uggt ugri ugur uguu uige uirr urbe urbi urci ure- uret urge urgi urgu urib uric urie uriu urre urri urte urur urut utec uter utri utti uttu utug uuri uuuu